[libmultipath] hwtable maintenance
[libmultipath] hwtable maintenance

Mostly tweaks to the Hitachi products, from Matthias Rudolph.

unakatsuo/multipath-tools,grzn/multipath-tools-explained,gebi/multipath-tools,unakatsuo/multipath-tools,unakatsuo/multipath-tools,grzn/multipath-tools-explained,vijaychauhan/multipath-tools,vijaychauhan/multipath-tools